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<li class="navelem"><a class="el" href="namespacefaiss.html">faiss</a></li><li class="navelem"><b>gpu</b></li><li class="navelem"><a class="el" href="classfaiss_1_1gpu_1_1KernelTimer.html">KernelTimer</a></li>  </ul>
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<p>Utility class for timing execution of a kernel.  
 <a href="classfaiss_1_1gpu_1_1KernelTimer.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="Timer_8h_source.html">Timer.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:af533a5a8734243263032960c2445d233"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfaiss_1_1gpu_1_1KernelTimer.html#af533a5a8734243263032960c2445d233">KernelTimer</a> (cudaStream_t stream=0)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfaiss_1_1gpu_1_1KernelTimer.html#af9883350bf0732b2452f1ce4670266fa">~KernelTimer</a> ()</td></tr>
<tr class="memdesc:af9883350bf0732b2452f1ce4670266fa"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor releases event resources. <br/></td></tr>
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<tr class="memitem:ac79ab2b2ef60a3fb713f7c80380ad2b5"><td class="memItemLeft" align="right" valign="top">float&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfaiss_1_1gpu_1_1KernelTimer.html#ac79ab2b2ef60a3fb713f7c80380ad2b5">elapsedMilliseconds</a> ()</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Utility class for timing execution of a kernel. </p>

<p>Definition at line <a class="el" href="Timer_8h_source.html#l00017">17</a> of file <a class="el" href="Timer_8h_source.html">Timer.h</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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          <td class="memname">faiss::gpu::KernelTimer::KernelTimer </td>
          <td>(</td>
          <td class="paramtype">cudaStream_t&#160;</td>
          <td class="paramname"><em>stream</em> = <code>0</code></td><td>)</td>
          <td></td>
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<p>Constructor starts the timer and adds an event into the current device stream </p>

<p>Definition at line <a class="el" href="Timer_8cpp_source.html#l00015">15</a> of file <a class="el" href="Timer_8cpp_source.html">Timer.cpp</a>.</p>

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          <td class="memname">float faiss::gpu::KernelTimer::elapsedMilliseconds </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
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<p>Adds a stop event then synchronizes on the stop event to get the actual GPU-side kernel timings for any kernels launched in the current stream. Returns the number of milliseconds elapsed. Can only be called once. </p>

<p>Definition at line <a class="el" href="Timer_8cpp_source.html#l00032">32</a> of file <a class="el" href="Timer_8cpp_source.html">Timer.cpp</a>.</p>

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<hr/>The documentation for this class was generated from the following files:<ul>
<li>/data/users/hoss/faiss/gpu/utils/<a class="el" href="Timer_8h_source.html">Timer.h</a></li>
<li>/data/users/hoss/faiss/gpu/utils/<a class="el" href="Timer_8cpp_source.html">Timer.cpp</a></li>
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